Bit overpriced - thick understandably for reliability. But because it is stored at the store in a cylinder its difficult to lay out flat. And it is somewhat bumpy to roll over. We currently have it on industrial/commercial carpeting.
For thick carpet needs deeper cleats. The chair wheels leave dimple marks in the surface and the wheel rolls back into the dimples so you are constantly moving the chair back into place.
The mat is fine but it quickly shows my office chair wheel indentations. I'm not sure how you would get around this problem unless you made the product much thicker - which is not realistic. The mat "lifespan" is about 4-6 months then it starts cracking (from the weight on the indentations and 'aging)')